525394157 has 2 divisors, whose sum is σ = 525394158. Its totient is φ = 525394156.

The previous prime is 525394139. The next prime is 525394193. The reversal of 525394157 is 751493525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401160841 + 124233316 = 20029^2 + 11146^2 .

It is a cyclic number.

It is not a de Polignac number, because 525394157 - 2²⁸ = 256958701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525394127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262697078 + 262697079.

It is an arithmetic number, because the mean of its divisors is an integer number (262697079).

Almost surely, 2^525394157 is an apocalyptic number.

It is an amenable number.

525394157 is a deficient number, since it is larger than the sum of its proper divisors (1).

525394157 is an equidigital number, since it uses as much as digits as its factorization.

525394157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 41.

The square root of 525394157 is about 22921.4780718871. The cubic root of 525394157 is about 806.9161595554.

The spelling of 525394157 in words is "five hundred twenty-five million, three hundred ninety-four thousand, one hundred fifty-seven".